In order to place this in context, you have to remember that the distribution of blood types isn't equal, and the proportions vary around the world, making it difficult to see if certain types are more commonly found in certain disease processes.
The statistics I have at hand are for Canada (no surprise) but the breakdown is:
A-__6%
A+__36%
B-___1.4%
B+__7.6%
AB-__0.5%
AB+__2.5%
O-___7%
O+___39%
I'm A+, and have high levels of almost all AI antibodies with the exception of dsDNA, and highly positive lip and lymph node biopsies.